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JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Introducing Conditional Statements

how to negate case sensitivity in a string?

I am asking for best language and expecting answer as Ruby or ruby or rubY , i mean i like to accept any "ruby" entered

app.js
var answer = prompt('what is the best programming language?');
if (answer === 'ruby')
{ alert('You are correct');
}
index.html
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="app.js"></script>
</body>
</html>

1 Answer

Martin Jones
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Martin Jones
Front End Web Development Techdegree Graduate 44,227 Points

You could convert the answer provided to lower case in the if statement by tacking on the .toLowerCase() method.

So the updated code would be:

var answer = prompt("what is the best programming language?");
if (answer.toLowerCase() === "ruby") {
  alert("You are correct");
}

Further reading: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toLowerCase

Hope this helps.